406689834913 has 2 divisors, whose sum is σ = 406689834914. Its totient is φ = 406689834912.

The previous prime is 406689834893. The next prime is 406689835001. The reversal of 406689834913 is 319438986604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398472775009 + 8217059904 = 631247^2 + 90648^2 .

It is a cyclic number.

It is not a de Polignac number, because 406689834913 - 2⁹ = 406689834401 is a prime.

It is not a weakly prime, because it can be changed into another prime (406689837913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203344917456 + 203344917457.

It is an arithmetic number, because the mean of its divisors is an integer number (203344917457).

Almost surely, 2^406689834913 is an apocalyptic number.

It is an amenable number.

406689834913 is a deficient number, since it is larger than the sum of its proper divisors (1).

406689834913 is an equidigital number, since it uses as much as digits as its factorization.

406689834913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 406689834913 in words is "four hundred six billion, six hundred eighty-nine million, eight hundred thirty-four thousand, nine hundred thirteen".